Last visit was: 26 Apr 2026, 06:06 It is currently 26 Apr 2026, 06:06
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Carcass
User avatar
Board of Directors
Joined: 01 Sep 2010
Last visit: 26 Apr 2026
Posts: 4,708
Own Kudos:
37,858
 [2]
Given Kudos: 4,925
Posts: 4,708
Kudos: 37,858
 [2]
Children whose biological parents both have Tic Syndrome Z (TSZ), whic Updated on: 05 Nov 2018, 04:10
Originally posted by Carcass on 17 Dec 2017, 15:32.
Last edited by Bunuel on 05 Nov 2018, 04:10, edited 1 time in total.
Renamed the topic and edited the question.
Kudos
Add Kudos
2
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

25% (medium)

Question Stats:

74% (01:47) correct 26% (02:00) wrong based on 307 sessions

History

Date
Time
Result
Not Attempted Yet
Children whose biological parents both have Tic Syndrome Z (TSZ), which is characterized by the involuntary contraction of certain muscles, are about four times more likely to develop such contractions than are children whose biological parents do not have TSZ, It is likely, therefore, that predisposition to TSZ is an inherited trait.

Which of the following, if true, would most strengthen the conclusion above?


(A) Children whose parents have TSZ are more likely to develop TSZ if they are under unusual stress at school or at home than if they are not under such stress.

(B) Children whose biological parents do not have TSZ are more likely to develop TSZ if they are raised by adoptive parents with TSZ than if they are raised by their biological parents.

(C) Children whose biological parents have TSZ are as likely to develop TSZ if they are raised by adoptive parents who do not have TSZ as if they are raised by their biological parents.

(D) Children whose biological parents have TSZ and who develop TSZ usually avoid developing a severe form of the syndrome if they seek treatment for TSZ shortly after developing the first signs of it.

(E) Children with TSZ whose biological parents do not have TSZ are less likely to have the syndrome diagnosed when symptoms first appear than are children with TSZ whose biological parents have TSZ.


ShowHide Answer
Official Answer
C
avatar
lalita_2018
avatar
Joined: 12 Oct 2016
Last visit: 11 Jan 2018
Posts: 3
Own Kudos:
5
 [1]
Given Kudos: 171
GMAT 1: 660 Q47 V35
GMAT 1: 660 Q47 V35
Posts: 3
Kudos: 5
 [1]
Children whose biological parents both have Tic Syndrome Z (TSZ), whic 17 Dec 2017, 19:57
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
IMO C. Conclusion states tendency to have TSZ is inherited. So, anything that strengthens this is correct. C does this by saying if adoptive parents raise children whose biological parents had TSZ, the children are as likely to develop the syndrome


Sent from my iPad using GMAT Club Forum
User avatar
sahilvijay
User avatar
Joined: 29 Jun 2017
Last visit: 16 Apr 2021
Posts: 289
Own Kudos:
931
Given Kudos: 76
GPA: 4
WE:Engineering (Transportation)
Products:
My Reviews
Posts: 289
Kudos: 931
Children whose biological parents both have Tic Syndrome Z (TSZ), whic Updated on: 18 Dec 2017, 22:41
Originally posted by sahilvijay on 17 Dec 2017, 23:06.
Last edited by sahilvijay on 18 Dec 2017, 22:41, edited 6 times in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
carcass

Children whose biological parents both have Tic Syndrome Z (TSZ), which is characterized by the involuntary contraction of certain muscles, are about four times more likely to develop such contractions than are children whose biological parents do not have TSZ, It is likely, therefore, that predisposition to TSZ is an inherited trait.

Which of the following, if true, would most strengthen the conclusion above?

(A) Children whose parents have TSZ are more likely to develop TSZ if they are under unusual stress at school or at home than if they are not under such stress.
This option focuses on stress - likely to be true only under stress -> OUT
(B) Children whose biological parents do not have TSZ are more likely to develop TSZ if they are raised by adoptive parents with TSZ than if they are raised by their biological parents.
It is opposite of premise -> Children( parents have TSZ) are 4times likely to develop TSZ than Children ( Parents dont have TSZ) => OUT
(C) Children whose biological parents have TSZ are as likely to develop TSZ if they are raised by adoptive parents who do not have TSZ as if they are raised by their biological parents. HOLD THIS -> Children( parents have TSZ) raised by parents( who dont have TSZ) are having same chances of developing TSZ -> In other words TSZ will be affecting children ( parents TSZ) irrespective of parents who raise them. ie with or without TSZ.
(D) Children whose biological parents have TSZ and who develop TSZ usually avoid developing a severe form of the syndrome if they seek treatment for TSZ shortly after developing the first signs of it.
Does not strengthen claim -> predisposition to TSZ is an inherited trait. {we are not interested in severe form of syndrome} => OUT
(E) Children with TSZ whose biological parents do not have TSZ are less likely to have the syndrome diagnosed when symptoms first appear than are children with TSZ whose biological parents have TSZ.
Does not strengthen claim -> We are not interested in diagnosing symptom -> but our motto is something else.-> to strengthen -predisposition to TSZ is an inherited trait.=> OUT
Show more



IMO C
User avatar
sandysilva
User avatar
Joined: 30 Dec 2016
Last visit: 23 Apr 2019
Posts: 190
Own Kudos:
947
 [1]
Given Kudos: 199
Schools: Schulich Sept '21 DeGroote'21 (S) Alberta"21 (S)
GMAT 1: 650 Q42 V37
GPA: 4
WE:Business Development (Other)
Products:
My Reviews
Schools: Schulich Sept '21 DeGroote'21 (S) Alberta"21 (S)
GMAT 1: 650 Q42 V37
Posts: 190
Kudos: 947
 [1]
Children whose biological parents both have Tic Syndrome Z (TSZ), whic 18 Dec 2017, 03:21
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
IMO.
C must be the correct answer.

E states that TSZ, in children whose biological parents do not have the illness, goes undiagnosed. This implies that even children whose biological parents don't have TSZ posses the illness but it is not diagnosed at times. This is contradicting our conclusion that TSZ is inherited trait.
User avatar
exc4libur
User avatar
Joined: 24 Nov 2016
Last visit: 22 Mar 2022
Posts: 1,680
Own Kudos:
1,469
 [1]
Given Kudos: 607
Location: United States
Posts: 1,680
Kudos: 1,469
 [1]
Children whose biological parents both have Tic Syndrome Z (TSZ), whic 18 Dec 2017, 06:25
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
carcass

Children whose biological parents both have Tic Syndrome Z (TSZ), which is characterized by the involuntary contraction of certain muscles, are about four times more likely to develop such contractions than are children whose biological parents do not have TSZ, It is likely, therefore, that predisposition to TSZ is an inherited trait.

Which of the following, if true, would most strengthen the conclusion above?

(A) Children whose parents have TSZ are more likely to develop TSZ if they are under unusual stress at school or at home than if they are not under such stress.
(B) Children whose biological parents do not have TSZ are more likely to develop TSZ if they are raised by adoptive parents with TSZ than if they are raised by their biological parents.
(C) Children whose biological parents have TSZ are as likely to develop TSZ if they are raised by adoptive parents who do not have TSZ as if they are raised by their biological parents.
(D) Children whose biological parents have TSZ and who develop TSZ usually avoid developing a severe form of the syndrome if they seek treatment for TSZ shortly after developing the first signs of it.
(E) Children with TSZ whose biological parents do not have TSZ are less likely to have the syndrome diagnosed when symptoms first appear than are children with TSZ whose biological parents have TSZ.
Show more

Child whose parents BOTH have TSZ = involuntary control of muscles >> have 4x chance of develop such contracts than Child whose parents don’t have TSZ >> So, likelihood of having TSZ is an inherited.

a) Child with TSZ parents are more like to get TSZ if they are stressed >> doesn’t explain y its inherited..
b) Child with non-TSZ parents are more like to get TSZ from TSZ not-parents >> this would weaken.. its saying TSZ can be developed from something else other than inherited..
c) Child with TSZ parents are likely to have TSZ if they are raised by non-TSZ not-parents or by TSZ parents >> so “maybe” its inherited…
d) Out of scope.. doesn’t explain if TSZ is mostly inherited or else..
d) Out of scope.. doesn’t explain if TSZ is mostly inherited or else..

(C) i think is the answer.
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 19,424
Own Kudos:
1,010
Posts: 19,424
Kudos: 1,010
Children whose biological parents both have Tic Syndrome Z (TSZ), whic 06 Aug 2021, 02:47
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club VerbalBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
GMATNinja
GMAT Club Verbal Expert
7391 posts
AbhishekP220108
506 posts
bhanu29
361 posts